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Specifications

O-GPS1 Specifications

Type Clip-on GPS unit
Recorded Information Latitude, Longitude, Altitude, Time (UTC), Direction
Receiving Function Tracking Channels: 50
Supports SBAS (WAAS/EGNOS/MSAS)
Acquisition Time Cold-start: approx. 40 seconds
Hot-start: approx. 5 seconds
Positioning Interval 1 second
GPS Accuracy 10m RMS
Data Format NMEA-0183
Geodesics World Geodetic System (WGS84)
Electronic Compass Accuracy: ±5° (precise calibration)
Positioning Interval: approx. 8 times
Reference Direction: True North
Dimensions Approx. 49.0mm (W) x 33.0mm (H) x 59.5mm (D)
Power Source AAA battery x 1
(alkaline battery, nickel-metal hydride battery, or lithium battery)
  Battery Life approx. 7 hours (23C°) / 4 hours (0C°) with alkaline battery
approx. 7 hours (23C°) / 5 hours (0C°) with nickel-metal hydride battery
approx. 12 hours (23C°) / 9 hours (0C°) with lithium battery
Weight Approx. 61g (including alkaline battery), approx. 50g (unit only)



ASTROTRACER Tracking Time (approx.)

PENTAX KP
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 110 sec. 190 sec. 300 sec.
0 degrees 70 sec. 150 sec. 300 sec.
PENTAX K-70
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 110 sec. 190 sec. 300 sec.
0 degrees 90 sec. 150 sec. 300 sec.


PENTAX K-5/K-5 II/K-5 IIs
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 160 sec. 290 sec. 300 sec.
0 degrees 110 sec. 240 sec. 300 sec.
PENTAX K-30/K-r/K-50
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 80 sec. 200 sec. 300 sec.
0 degrees 80 sec. 170 sec. 300 sec.


PENTAX K-3
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 180 sec. 300 sec. 300 sec.
0 degrees 130 sec. 260 sec. 300 sec.
PENTAX K-S1
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 90 sec. 150 sec. 280 sec.
0 degrees 60 sec. 130 sec. 260 sec.


PENTAX K-S2
Declination Focal Length
200mm 100mm under 50mm
90 degrees 300 sec. 300 sec. 300 sec.
45 degrees 140 sec. 230 sec. 300 sec.
0 degrees 90 sec. 180 sec. 300 sec.

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